Boneva, Tsvetanka, and Severina Yorgova. “3D Reconstruction and Digital Visualization of the South of the Royal Palace in Great Preslav”. Digital Presentation and Preservation of Cultural and Scientific Heritage 3 (September 30, 2013): 205–211. Accessed May 6, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2013.3.24.